ES2123291T3 - Procedimiento de sintonizacion para sistemas de comunicacion de punto a multipunto. - Google Patents

Procedimiento de sintonizacion para sistemas de comunicacion de punto a multipunto.

Info

Publication number
ES2123291T3
ES2123291T3 ES95935953T ES95935953T ES2123291T3 ES 2123291 T3 ES2123291 T3 ES 2123291T3 ES 95935953 T ES95935953 T ES 95935953T ES 95935953 T ES95935953 T ES 95935953T ES 2123291 T3 ES2123291 T3 ES 2123291T3
Authority
ES
Spain
Prior art keywords
olt
central station
onu
terminal
ranging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES95935953T
Other languages
English (en)
Inventor
Torsten Musiol
Torsten Velker
Jens Lunau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Oyj
Original Assignee
Nokia Telecommunications Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Application granted granted Critical
Publication of ES2123291T3 publication Critical patent/ES2123291T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/043—Pseudo-noise [PN] codes variable during transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0682—Clock or time synchronisation in a network by delay compensation, e.g. by compensation of propagation delay or variations thereof, by ranging

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Optical Communication System (AREA)
  • Small-Scale Networks (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

SE DESCRIBE UN PROCESO DE DETERMINACION DE DISTANCIA PARA SISTEMAS DE COMUNICACION DE PUNTO A MULTIPUNTO, DISPONIENDO DE UNA ESTACION (OLT) CENTRAL Y VARIAS TERMINALES (ONU) CONECTADAS A LA ESTACION (OLT) CENTRAL MEDIANTE UNA RED, EN PARTICULAR UNA RED OPTICA PASIVA. CADA UNA DE LAS TERMINALES ENVIA UNA SECUENCIA (ONU-PNS-TX) DE PSEUDORRUIDO SOBRE UN PORTADOR FUERA DE LA BANDA DE TRANSMISION DE DATOS, SIENDO RECIBIDA LA FRECUENCIA DE PSEUDORRUIDO CON UN RETARDO (ONU-PNS-RX) MEDIANTE LA ESTACION (OLT) CENTRAL Y ESTANDO CORRELACIONADA CON UNA SECUENCIA (OLTPNS) DE PSEUDORRUIDO GENERADA DE FORMA IDENTICA EN LA ESTACION (OLT) CENTRAL. EL RETARDO DE DOS VIAS A LA TERMINAL (ONU) SE DETERMINA A PARTIR DEL VALOR EXTREMO DE LA FUNCION DE CORRELACION Y EL RETARDO REQUERIDO ENTRE EL ESTALLIDO RECIBIDO MEDIANTE LA TERMINAL Y EL ESTALLIDO ENVIADO A TRAVES DE LA TERMINAL SE DERIVA A PARTIR DEL RETARDO DE DOS VIAS. PARA CREAR UN SISTEMA DE COMUNICACION DONDE LOS TERMINALES DISPONGAN DE UN HARDWARE DE DETERMINACION DE DISTANCIA LO MAS SIMPLE POSIBLE, LA SECUENCIA DE DETERMINACION DE DISTANCIA ES UNA SECUENCIA BINARIA CUYA FUNCION DE AUTOCORRELACION TIENE UN VALOR EXTREMO EN EL PUNTO CERO. LA POSICION DE FASE RELATIVA ENTRE LA SECUENCIA DE DETERMINACION DE DISTANCIA RECIBIDA (ONU-PNSD-RX) Y UNA SEÑAL (OLT-CLK-SEQ) DE RELOJ DERIVADA A PARTIR DE LA RELACION (OLT-CLKDATA) DE DATOS SE DETERMINA PRIMERO EN LA ESTACION (OLT) CENTRAL Y LAS SECUENCIAS DE DETERMINACION DE DISTANCIA DE LA ESTACION TERMINAL Y CENTRAL SON CORRELACIONADAS EN FASE.
ES95935953T 1994-10-27 1995-10-20 Procedimiento de sintonizacion para sistemas de comunicacion de punto a multipunto. Expired - Lifetime ES2123291T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4438344A DE4438344C1 (de) 1994-10-27 1994-10-27 Abstimmungsverfahren für Punkt-zu-Multipunkt Kommunikationssysteme

Publications (1)

Publication Number Publication Date
ES2123291T3 true ES2123291T3 (es) 1999-01-01

Family

ID=6531804

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95935953T Expired - Lifetime ES2123291T3 (es) 1994-10-27 1995-10-20 Procedimiento de sintonizacion para sistemas de comunicacion de punto a multipunto.

Country Status (8)

Country Link
EP (1) EP0787389B1 (es)
JP (1) JPH10508443A (es)
AT (1) ATE170684T1 (es)
AU (1) AU3806195A (es)
DE (1) DE4438344C1 (es)
DK (1) DK0787389T3 (es)
ES (1) ES2123291T3 (es)
WO (1) WO1996013915A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10147164B4 (de) * 2001-09-25 2004-05-06 Siemens Ag Verfahren zur Ermittlung der Laufzeitverzögerung einer Verbindung mit Übertragung über ein paketbasiertes Netz
JP3936721B2 (ja) 2005-07-29 2007-06-27 株式会社日立コミュニケーションテクノロジー 光アクセスシステム、光加入者装置及び光集線装置
JP4872377B2 (ja) 2006-02-22 2012-02-08 沖電気工業株式会社 中央局と複数端末装置間通信システムのレンジング方法
EP2472753B1 (en) * 2011-01-04 2013-06-12 Alcatel Lucent Method of delay measurement in an optical network

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2657480B1 (fr) * 1990-01-22 1992-04-10 Alcatel Business Systems Procede de transmission d'octets mettant en óoeuvre une trame synchrone associant des cellules asynchrones a des canaux isochrones.
ES2126561T3 (es) * 1991-06-04 1999-04-01 Cit Alcatel Metodo para determinar retardos de ecualizacion en un sistema de transmision y sistema de transmision relacionado.
GB2272610B (en) * 1992-11-12 1996-10-09 Northern Telecom Ltd Telecommunications systems
EP0616444A3 (en) * 1993-03-15 1994-10-19 Koninkl Philips Electronics Nv Telecommunication system with ranging.
EP0616443A3 (en) * 1993-03-15 1994-10-26 Koninkl Philips Electronics Nv Telecommunication system with ranging.

Also Published As

Publication number Publication date
EP0787389B1 (de) 1998-09-02
DE4438344C1 (de) 1996-08-01
DK0787389T3 (da) 1999-06-07
AU3806195A (en) 1996-05-23
WO1996013915A1 (de) 1996-05-09
EP0787389A1 (de) 1997-08-06
JPH10508443A (ja) 1998-08-18
ATE170684T1 (de) 1998-09-15

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